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a0316b24 BB |
1 | /* |
2 | * linux/arch/arm/mach-realview/realview_pb1176.c | |
3 | * | |
4 | * Copyright (C) 2008 ARM Limited | |
5 | * Copyright (C) 2000 Deep Blue Solutions Ltd | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <linux/init.h> | |
23 | #include <linux/platform_device.h> | |
edbaa603 | 24 | #include <linux/device.h> |
a0316b24 | 25 | #include <linux/amba/bus.h> |
eb7fffa3 | 26 | #include <linux/amba/pl061.h> |
6ef297f8 | 27 | #include <linux/amba/mmci.h> |
d6ada860 | 28 | #include <linux/amba/pl022.h> |
0ec5a95b LW |
29 | #include <linux/mtd/physmap.h> |
30 | #include <linux/mtd/partitions.h> | |
fced80c7 | 31 | #include <linux/io.h> |
f9a6aa43 | 32 | #include <linux/platform_data/clk-realview.h> |
a0316b24 | 33 | |
a09e64fb | 34 | #include <mach/hardware.h> |
a0316b24 | 35 | #include <asm/irq.h> |
a0316b24 | 36 | #include <asm/mach-types.h> |
cc9897df | 37 | #include <asm/pgtable.h> |
a0316b24 | 38 | #include <asm/hardware/gic.h> |
a0316b24 BB |
39 | #include <asm/hardware/cache-l2x0.h> |
40 | ||
41 | #include <asm/mach/arch.h> | |
42 | #include <asm/mach/flash.h> | |
43 | #include <asm/mach/map.h> | |
a0316b24 BB |
44 | #include <asm/mach/time.h> |
45 | ||
a09e64fb RK |
46 | #include <mach/board-pb1176.h> |
47 | #include <mach/irqs.h> | |
a0316b24 BB |
48 | |
49 | #include "core.h" | |
a0316b24 BB |
50 | |
51 | static struct map_desc realview_pb1176_io_desc[] __initdata = { | |
52 | { | |
53 | .virtual = IO_ADDRESS(REALVIEW_SYS_BASE), | |
54 | .pfn = __phys_to_pfn(REALVIEW_SYS_BASE), | |
55 | .length = SZ_4K, | |
56 | .type = MT_DEVICE, | |
57 | }, { | |
58 | .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE), | |
59 | .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE), | |
60 | .length = SZ_4K, | |
61 | .type = MT_DEVICE, | |
62 | }, { | |
63 | .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE), | |
64 | .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE), | |
65 | .length = SZ_4K, | |
66 | .type = MT_DEVICE, | |
67 | }, { | |
68 | .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE), | |
69 | .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE), | |
70 | .length = SZ_4K, | |
71 | .type = MT_DEVICE, | |
72 | }, { | |
73 | .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE), | |
74 | .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE), | |
75 | .length = SZ_4K, | |
76 | .type = MT_DEVICE, | |
77 | }, { | |
78 | .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), | |
79 | .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), | |
80 | .length = SZ_4K, | |
81 | .type = MT_DEVICE, | |
82 | }, { | |
83 | .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE), | |
84 | .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE), | |
85 | .length = SZ_4K, | |
86 | .type = MT_DEVICE, | |
87 | }, { | |
88 | .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE), | |
89 | .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE), | |
90 | .length = SZ_4K, | |
91 | .type = MT_DEVICE, | |
92 | }, { | |
93 | .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE), | |
94 | .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE), | |
95 | .length = SZ_8K, | |
96 | .type = MT_DEVICE, | |
97 | }, | |
98 | #ifdef CONFIG_DEBUG_LL | |
99 | { | |
100 | .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE), | |
101 | .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE), | |
102 | .length = SZ_4K, | |
103 | .type = MT_DEVICE, | |
104 | }, | |
105 | #endif | |
106 | }; | |
107 | ||
108 | static void __init realview_pb1176_map_io(void) | |
109 | { | |
110 | iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc)); | |
111 | } | |
112 | ||
eb7fffa3 RK |
113 | static struct pl061_platform_data gpio0_plat_data = { |
114 | .gpio_base = 0, | |
eb7fffa3 RK |
115 | }; |
116 | ||
117 | static struct pl061_platform_data gpio1_plat_data = { | |
118 | .gpio_base = 8, | |
eb7fffa3 RK |
119 | }; |
120 | ||
121 | static struct pl061_platform_data gpio2_plat_data = { | |
122 | .gpio_base = 16, | |
eb7fffa3 RK |
123 | }; |
124 | ||
d6ada860 LW |
125 | static struct pl022_ssp_controller ssp0_plat_data = { |
126 | .bus_id = 0, | |
127 | .enable_dma = 0, | |
128 | .num_chipselect = 1, | |
129 | }; | |
130 | ||
a0316b24 BB |
131 | /* |
132 | * RealView PB1176 AMBA devices | |
133 | */ | |
0dada61a RK |
134 | #define GPIO2_IRQ { IRQ_PB1176_GPIO2 } |
135 | #define GPIO3_IRQ { IRQ_PB1176_GPIO3 } | |
136 | #define AACI_IRQ { IRQ_PB1176_AACI } | |
a0316b24 | 137 | #define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B } |
0dada61a RK |
138 | #define KMI0_IRQ { IRQ_PB1176_KMI0 } |
139 | #define KMI1_IRQ { IRQ_PB1176_KMI1 } | |
140 | #define PB1176_SMC_IRQ { } | |
141 | #define MPMC_IRQ { } | |
142 | #define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD } | |
143 | #define SCTL_IRQ { } | |
144 | #define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG } | |
145 | #define PB1176_GPIO0_IRQ { IRQ_DC1176_GPIO0 } | |
146 | #define GPIO1_IRQ { IRQ_PB1176_GPIO1 } | |
147 | #define PB1176_RTC_IRQ { IRQ_DC1176_RTC } | |
148 | #define SCI_IRQ { IRQ_PB1176_SCI } | |
149 | #define PB1176_UART0_IRQ { IRQ_DC1176_UART0 } | |
150 | #define PB1176_UART1_IRQ { IRQ_DC1176_UART1 } | |
151 | #define PB1176_UART2_IRQ { IRQ_DC1176_UART2 } | |
152 | #define PB1176_UART3_IRQ { IRQ_DC1176_UART3 } | |
153 | #define PB1176_UART4_IRQ { IRQ_PB1176_UART4 } | |
154 | #define PB1176_SSP_IRQ { IRQ_DC1176_SSP } | |
a0316b24 BB |
155 | |
156 | /* FPGA Primecells */ | |
9199340b RK |
157 | APB_DEVICE(aaci, "fpga:aaci", AACI, NULL); |
158 | APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); | |
159 | APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); | |
160 | APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); | |
161 | APB_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL); | |
a0316b24 BB |
162 | |
163 | /* DevChip Primecells */ | |
9199340b RK |
164 | AHB_DEVICE(smc, "dev:smc", PB1176_SMC, NULL); |
165 | AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL); | |
166 | APB_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL); | |
167 | APB_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data); | |
168 | APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); | |
169 | APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); | |
170 | APB_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL); | |
171 | APB_DEVICE(sci0, "dev:sci0", SCI, NULL); | |
172 | APB_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL); | |
173 | APB_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL); | |
174 | APB_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL); | |
175 | APB_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL); | |
176 | APB_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data); | |
177 | AHB_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data); | |
a0316b24 BB |
178 | |
179 | static struct amba_device *amba_devs[] __initdata = { | |
a0316b24 BB |
180 | &uart0_device, |
181 | &uart1_device, | |
182 | &uart2_device, | |
183 | &uart3_device, | |
48f1d5a3 | 184 | &uart4_device, |
a0316b24 BB |
185 | &smc_device, |
186 | &clcd_device, | |
187 | &sctl_device, | |
188 | &wdog_device, | |
189 | &gpio0_device, | |
190 | &gpio1_device, | |
191 | &gpio2_device, | |
192 | &rtc_device, | |
193 | &sci0_device, | |
194 | &ssp0_device, | |
195 | &aaci_device, | |
196 | &mmc0_device, | |
197 | &kmi0_device, | |
198 | &kmi1_device, | |
199 | }; | |
200 | ||
201 | /* | |
202 | * RealView PB1176 platform devices | |
203 | */ | |
af607747 | 204 | static struct resource realview_pb1176_flash_resources[] = { |
0ec5a95b | 205 | { |
af607747 CM |
206 | .start = REALVIEW_PB1176_FLASH_BASE, |
207 | .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1, | |
208 | .flags = IORESOURCE_MEM, | |
209 | }, | |
0ec5a95b LW |
210 | #ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH |
211 | { | |
af607747 CM |
212 | .start = REALVIEW_PB1176_SEC_FLASH_BASE, |
213 | .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1, | |
214 | .flags = IORESOURCE_MEM, | |
215 | }, | |
af607747 | 216 | #endif |
0ec5a95b LW |
217 | }; |
218 | ||
219 | static struct physmap_flash_data pb1176_rom_pdata = { | |
220 | .probe_type = "map_rom", | |
221 | .width = 4, | |
222 | .nr_parts = 0, | |
223 | }; | |
224 | ||
225 | static struct resource pb1176_rom_resources[] = { | |
226 | /* | |
227 | * This exposes the PB1176 DevChip ROM as an MTD ROM mapping. | |
228 | * The reference manual states that this is actually a pseudo-ROM | |
229 | * programmed in NVRAM. | |
230 | */ | |
231 | { | |
232 | .start = REALVIEW_DC1176_ROM_BASE, | |
233 | .end = REALVIEW_DC1176_ROM_BASE + SZ_16K - 1, | |
234 | .flags = IORESOURCE_MEM, | |
235 | } | |
236 | }; | |
237 | ||
238 | static struct platform_device pb1176_rom_device = { | |
239 | .name = "physmap-flash", | |
240 | .id = -1, | |
241 | .num_resources = ARRAY_SIZE(pb1176_rom_resources), | |
242 | .resource = pb1176_rom_resources, | |
243 | .dev = { | |
244 | .platform_data = &pb1176_rom_pdata, | |
245 | }, | |
246 | }; | |
a0316b24 BB |
247 | |
248 | static struct resource realview_pb1176_smsc911x_resources[] = { | |
249 | [0] = { | |
250 | .start = REALVIEW_PB1176_ETH_BASE, | |
251 | .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1, | |
252 | .flags = IORESOURCE_MEM, | |
253 | }, | |
254 | [1] = { | |
255 | .start = IRQ_PB1176_ETH, | |
256 | .end = IRQ_PB1176_ETH, | |
257 | .flags = IORESOURCE_IRQ, | |
258 | }, | |
259 | }; | |
260 | ||
7db21712 CM |
261 | static struct resource realview_pb1176_isp1761_resources[] = { |
262 | [0] = { | |
263 | .start = REALVIEW_PB1176_USB_BASE, | |
264 | .end = REALVIEW_PB1176_USB_BASE + SZ_128K - 1, | |
265 | .flags = IORESOURCE_MEM, | |
266 | }, | |
267 | [1] = { | |
268 | .start = IRQ_PB1176_USB, | |
269 | .end = IRQ_PB1176_USB, | |
270 | .flags = IORESOURCE_IRQ, | |
271 | }, | |
272 | }; | |
273 | ||
f417cbad WD |
274 | static struct resource pmu_resource = { |
275 | .start = IRQ_DC1176_CORE_PMU, | |
276 | .end = IRQ_DC1176_CORE_PMU, | |
277 | .flags = IORESOURCE_IRQ, | |
278 | }; | |
279 | ||
280 | static struct platform_device pmu_device = { | |
281 | .name = "arm-pmu", | |
df3d17e0 | 282 | .id = -1, |
f417cbad WD |
283 | .num_resources = 1, |
284 | .resource = &pmu_resource, | |
285 | }; | |
286 | ||
d161edfb LW |
287 | static struct resource char_lcd_resources[] = { |
288 | { | |
289 | .start = REALVIEW_CHAR_LCD_BASE, | |
290 | .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1), | |
291 | .flags = IORESOURCE_MEM, | |
292 | }, | |
293 | { | |
294 | .start = IRQ_PB1176_CHARLCD, | |
295 | .end = IRQ_PB1176_CHARLCD, | |
296 | .flags = IORESOURCE_IRQ, | |
297 | }, | |
298 | }; | |
299 | ||
300 | static struct platform_device char_lcd_device = { | |
301 | .name = "arm-charlcd", | |
302 | .id = -1, | |
303 | .num_resources = ARRAY_SIZE(char_lcd_resources), | |
304 | .resource = char_lcd_resources, | |
305 | }; | |
306 | ||
a0316b24 BB |
307 | static void __init gic_init_irq(void) |
308 | { | |
309 | /* ARM1176 DevChip GIC, primary */ | |
b580b899 RK |
310 | gic_init(0, IRQ_DC1176_GIC_START, |
311 | __io_address(REALVIEW_DC1176_GIC_DIST_BASE), | |
ff2e27ae | 312 | __io_address(REALVIEW_DC1176_GIC_CPU_BASE)); |
a0316b24 BB |
313 | |
314 | /* board GIC, secondary */ | |
b580b899 RK |
315 | gic_init(1, IRQ_PB1176_GIC_START, |
316 | __io_address(REALVIEW_PB1176_GIC_DIST_BASE), | |
317 | __io_address(REALVIEW_PB1176_GIC_CPU_BASE)); | |
a0316b24 BB |
318 | gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1); |
319 | } | |
320 | ||
321 | static void __init realview_pb1176_timer_init(void) | |
322 | { | |
323 | timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE); | |
324 | timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20; | |
325 | timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE); | |
326 | timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20; | |
327 | ||
f9a6aa43 | 328 | realview_clk_init(__io_address(REALVIEW_SYS_BASE), true); |
a0316b24 BB |
329 | realview_timer_init(IRQ_DC1176_TIMER0); |
330 | } | |
331 | ||
332 | static struct sys_timer realview_pb1176_timer = { | |
333 | .init = realview_pb1176_timer_init, | |
334 | }; | |
335 | ||
47cacdd4 | 336 | static void realview_pb1176_restart(char mode, const char *cmd) |
426fcd2a | 337 | { |
4c9f8be7 CT |
338 | void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); |
339 | void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); | |
340 | __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); | |
341 | __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl); | |
47cacdd4 | 342 | dsb(); |
426fcd2a PJ |
343 | } |
344 | ||
0744a3ee | 345 | static void realview_pb1176_fixup(struct tag *tags, char **from, |
5b39d154 CM |
346 | struct meminfo *meminfo) |
347 | { | |
348 | /* | |
349 | * RealView PB1176 only has 128MB of RAM mapped at 0. | |
350 | */ | |
351 | meminfo->bank[0].start = 0; | |
352 | meminfo->bank[0].size = SZ_128M; | |
353 | meminfo->nr_banks = 1; | |
354 | } | |
355 | ||
a0316b24 BB |
356 | static void __init realview_pb1176_init(void) |
357 | { | |
358 | int i; | |
359 | ||
ba927951 | 360 | #ifdef CONFIG_CACHE_L2X0 |
a0316b24 BB |
361 | /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */ |
362 | l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff); | |
ba927951 | 363 | #endif |
a0316b24 | 364 | |
af607747 | 365 | realview_flash_register(realview_pb1176_flash_resources, |
0ec5a95b LW |
366 | ARRAY_SIZE(realview_pb1176_flash_resources)); |
367 | platform_device_register(&pb1176_rom_device); | |
0a381330 | 368 | realview_eth_register(NULL, realview_pb1176_smsc911x_resources); |
533ad5e6 | 369 | platform_device_register(&realview_i2c_device); |
7db21712 | 370 | realview_usb_register(realview_pb1176_isp1761_resources); |
f417cbad | 371 | platform_device_register(&pmu_device); |
d161edfb | 372 | platform_device_register(&char_lcd_device); |
a0316b24 BB |
373 | |
374 | for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { | |
375 | struct amba_device *d = amba_devs[i]; | |
376 | amba_device_register(d, &iomem_resource); | |
377 | } | |
a0316b24 BB |
378 | } |
379 | ||
380 | MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176") | |
381 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | |
9ddea57e | 382 | .atag_offset = 0x100, |
5b39d154 | 383 | .fixup = realview_pb1176_fixup, |
a0316b24 | 384 | .map_io = realview_pb1176_map_io, |
631e55f9 | 385 | .init_early = realview_init_early, |
a0316b24 BB |
386 | .init_irq = gic_init_irq, |
387 | .timer = &realview_pb1176_timer, | |
1b99d9cc | 388 | .handle_irq = gic_handle_irq, |
a0316b24 | 389 | .init_machine = realview_pb1176_init, |
00e9125e NP |
390 | #ifdef CONFIG_ZONE_DMA |
391 | .dma_zone_size = SZ_256M, | |
392 | #endif | |
47cacdd4 | 393 | .restart = realview_pb1176_restart, |
a0316b24 | 394 | MACHINE_END |